Nut-lock



(No Model.)

J. B. SARGENT. NUT L00K.

No. 003,050. Patented Apr. 26, 1898.

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UNITED STATES PATENT OFFICE.

JUSTIN B. SARGENT, OF WVEST LEBANON, NEIV HAMPSHIRE.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 603,050, dated April26, 1898.

Application filed December 2'7, 1897. 1'ia1 663,605. (No model.)

To ctZZ whom it Hwy concern.-

Be it known that I, J UsTIN B. SARGENT, a citizen of the United States,residing at WVest Lebanon, in the county of Grafton and State of NewHampshire, have invented certain new and useful Improvements inNut-Locks; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention relates to improvements in never-slip nut-locks which areparticularly adapted for use upon bolts used in vehicle construction orany place where my nut-lock will perform its functions.

The main object of my invention is the provision of a nut-lock for thepurpose named which is very easily applied to any bolt, which will notallow the nut to become loose, and which is very simple and durable, aswell as cheap, thus producing a much-needed device of this character.

To attain the desired objects, the invention consists of a nut-lockembodying novel features of construction, substantially as shown in thedrawings and described herein.

Figure 1 represents a perspective view of my improved nut-lock inposition for use, the bolt and nut being shown in dotted lines to moreclearly show the construction of the lock. Figs. 2, 3, and i aresectional views of some modified forms of my nut-lock, and Figs. 5, 6,and 7are perspective views of other modifications.

In the drawings, A designates the bolt, having the head andscrew-threaded end common to all bolts, and B designates the nut, whichis adapted to screw upon said bolt, and to keep this nut in a rigidposition I employ my improved nut-lock, which consists of the plate 0,whose body portion is curved or arced, as D, from end to end to form aspring to press upward against the bottom of the nut. In the bodyportion is the circular opening E, through which passes the end of thebolt, the nut being placed upon the bolt after the plate. The plate isformed with the bent end or prong F, which is bent downward to keep theplate from turning upon the surface of the object G, through which thebolt passes, and to doubly secure the nut against turning the plate hasanother corner bent upward to form the bent end or prong H, which isbent upward to abut against the side of the nut.

In Figs. 2, 3, and 4; it will be seen that I employ the bent up side Jinstead of the prong II. In Fig. 2 the side K is bent at right angles tothe plate to perform the same functions as the prong F in Fig. A prong Lis formed upon the plate, which is adapted to be forced into the surfaceof the object and hold the plate from turning, and in Fig. 4 the twoprongs M are formed upon the plate for the same purpose as the prong L,but to more securely hold the plate in position.

In Fig. 5 instead of the prongs L or M an opening N is made in theplate, in which is placed a nail or pin 0 to answer the same purpose asthe prongs, the nail being driven in the surface of the object.

In Fig. 6 a strip P is cut from the body of the plate and has the curvedupward portion I which is adapted to abut against the side of the nut toguard against its turning, and in Fig. 7 a short strip Q, is bent upwardfrom the body portion of the plate to answer the same purpose as thestrip P. I provide the nut on the under face with grooves R, with whichengages a raised portion S on the locking-washer.

From this description, taken in connection with the drawings, it will beseen that my nut-lock is easily applied and used upon bolts uponvehicles, such as whiftletree-bolts and the like, it has no equal, willhold the nut and prevent its turning, and that the lock is very simple,durable, and cheap, thus making it a useful and practical article.

I claim- 1. In a nut-lock, the combination with the nut having a grooveor grooves on the under face, of a plate having a lug to engage thegroove and also having one end bent to engage the nut on its outer edge.

2. In a nut-lock, the combination of the nut having a groove or grooveson its under face, of the curved spring-plate having its ends bent inopposite directions to engage the nut and base-plate and having a lugfor engaging the groove of the nut.

In testimony whereof I afliX my signature in presence of two witnesses.

JUSTIN l3. SARGENT.

\Vitnesses:

FLORENCE E. SARGENT, OnEsTEE J. SARGENT.

